Abstract: T&B Conduit Fittings General Information Thomas & Betts. The Complete Product Line Since the turn of the century, Thomas & Betts has been a recognized leader in electrical fittings. Industry standards such as Chase® Nipples and Erickson® Couplings were introduced by Thomas & Betts and are still registered trademarks. This leadership continues. Here's why. Innovative Designs The real test of product design of electrical fittings lies in two areas: job-suited installation and life ...